Delete bundled copy of OpenSSL and replace with README.

openssl/apps/s_socket.c

Index: openssl/apps/s_socket.c
diff --git a/openssl/apps/s_socket.c b/openssl/apps/s_socket.c
deleted file mode 100644
index 380efdb1b9762d28e8bc9f32fe0e4d1c76470435..0000000000000000000000000000000000000000
--- a/openssl/apps/s_socket.c
+++ /dev/null
@@ -1,619 +0,0 @@
-/* apps/s_socket.c -  socket-related functions used by s_client and s_server */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- * 
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to.  The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- * 
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- * 
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *    "This product includes cryptographic software written by
- *     Eric Young (eay@cryptsoft.com)"
- *    The word 'cryptographic' can be left out if the rouines from the library
- *    being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from 
- *    the apps directory (application code) you must include an acknowledgement:
- *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- * 
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * 
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed.  i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <signal.h>
-
-#ifdef FLAT_INC
-#include "e_os2.h"
-#else
-#include "../e_os2.h"
-#endif
-
-/* With IPv6, it looks like Digital has mixed up the proper order of
-   recursive header file inclusion, resulting in the compiler complaining
-   that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
-   is needed to have fileno() declared correctly...  So let's define u_int */
-#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
-#define __U_INT
-typedef unsigned int u_int;
-#endif
-
-#define USE_SOCKETS
-#define NON_MAIN
-#include "apps.h"
-#undef USE_SOCKETS
-#undef NON_MAIN
-#include "s_apps.h"
-#include <openssl/ssl.h>
-
-#ifdef FLAT_INC
-#include "e_os.h"
-#else
-#include "../e_os.h"
-#endif
-
-#ifndef OPENSSL_NO_SOCK
-
-#if defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_BSDSOCK)
-#include "netdb.h"
-#endif
-
-static struct hostent *GetHostByName(char *name);
-#if defined(OPENSSL_SYS_WINDOWS) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK))
-static void ssl_sock_cleanup(void);
-#endif
-static int ssl_sock_init(void);
-static int init_client_ip(int *sock,unsigned char ip[4], int port, int type);
-static int init_server(int *sock, int port, int type);
-static int init_server_long(int *sock, int port,char *ip, int type);
-static int do_accept(int acc_sock, int *sock, char **host);
-static int host_ip(char *str, unsigned char ip[4]);
-
-#ifdef OPENSSL_SYS_WIN16
-#define SOCKET_PROTOCOL	0 /* more microsoft stupidity */
-#else
-#define SOCKET_PROTOCOL	IPPROTO_TCP
-#endif
-
-#if defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)
-static int wsa_init_done=0;
-#endif
-
-#ifdef OPENSSL_SYS_WINDOWS
-static struct WSAData wsa_state;
-static int wsa_init_done=0;
-
-#ifdef OPENSSL_SYS_WIN16
-static HWND topWnd=0;
-static FARPROC lpTopWndProc=NULL;
-static FARPROC lpTopHookProc=NULL;
-extern HINSTANCE _hInstance;  /* nice global CRT provides */
-
-static LONG FAR PASCAL topHookProc(HWND hwnd, UINT message, WPARAM wParam,
-	     LPARAM lParam)
-	{
-	if (hwnd == topWnd)
-		{
-		switch(message)
-			{
-		case WM_DESTROY:
-		case WM_CLOSE:
-			SetWindowLong(topWnd,GWL_WNDPROC,(LONG)lpTopWndProc);
-			ssl_sock_cleanup();
-			break;
-			}
-		}
-	return CallWindowProc(lpTopWndProc,hwnd,message,wParam,lParam);
-	}
-
-static BOOL CALLBACK enumproc(HWND hwnd,LPARAM lParam)
-	{
-	topWnd=hwnd;
-	return(FALSE);
-	}
-
-#endif /* OPENSSL_SYS_WIN32 */
-#endif /* OPENSSL_SYS_WINDOWS */
-
-#ifdef OPENSSL_SYS_WINDOWS
-static void ssl_sock_cleanup(void)
-	{
-	if (wsa_init_done)
-		{
-		wsa_init_done=0;
-#ifndef OPENSSL_SYS_WINCE
-		WSACancelBlockingCall();
-#endif
-		WSACleanup();
-		}
-	}
-#elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)
-static void sock_cleanup(void)
-    {
-    if (wsa_init_done)
-        {
-        wsa_init_done=0;
-		WSACleanup();
-		}
-	}
-#endif
-
-static int ssl_sock_init(void)
-	{
-#ifdef WATT32
-	extern int _watt_do_exit;
-	_watt_do_exit = 0;
-	if (sock_init())
-		return (0);
-#elif defined(OPENSSL_SYS_WINDOWS)
-	if (!wsa_init_done)
-		{
-		int err;
-	  
-#ifdef SIGINT
-		signal(SIGINT,(void (*)(int))ssl_sock_cleanup);
-#endif
-		wsa_init_done=1;
-		memset(&wsa_state,0,sizeof(wsa_state));
-		if (WSAStartup(0x0101,&wsa_state)!=0)
-			{
-			err=WSAGetLastError();
-			BIO_printf(bio_err,"unable to start WINSOCK, error code=%d\n",err);
-			return(0);
-			}
-
-#ifdef OPENSSL_SYS_WIN16
-		EnumTaskWindows(GetCurrentTask(),enumproc,0L);
-		lpTopWndProc=(FARPROC)GetWindowLong(topWnd,GWL_WNDPROC);
-		lpTopHookProc=MakeProcInstance((FARPROC)topHookProc,_hInstance);
-
-		SetWindowLong(topWnd,GWL_WNDPROC,(LONG)lpTopHookProc);
-#endif /* OPENSSL_SYS_WIN16 */
-		}
-#elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)
-   WORD wVerReq;
-   WSADATA wsaData;
-   int err;
-
-   if (!wsa_init_done)
-      {
-   
-# ifdef SIGINT
-      signal(SIGINT,(void (*)(int))sock_cleanup);
-# endif
-
-      wsa_init_done=1;
-      wVerReq = MAKEWORD( 2, 0 );
-      err = WSAStartup(wVerReq,&wsaData);
-      if (err != 0)
-         {
-         BIO_printf(bio_err,"unable to start WINSOCK2, error code=%d\n",err);
-         return(0);
-         }
-      }
-#endif /* OPENSSL_SYS_WINDOWS */
-	return(1);
-	}
-
-int init_client(int *sock, char *host, int port, int type)
-	{
-	unsigned char ip[4];
-
-	memset(ip, '\0', sizeof ip);
-	if (!host_ip(host,&(ip[0])))
-		return 0;
-	return init_client_ip(sock,ip,port,type);
-	}
-
-static int init_client_ip(int *sock, unsigned char ip[4], int port, int type)
-	{
-	unsigned long addr;
-	struct sockaddr_in them;
-	int s,i;
-
-	if (!ssl_sock_init()) return(0);
-
-	memset((char *)&them,0,sizeof(them));
-	them.sin_family=AF_INET;
-	them.sin_port=htons((unsigned short)port);
-	addr=(unsigned long)
-		((unsigned long)ip[0]<<24L)|
-		((unsigned long)ip[1]<<16L)|
-		((unsigned long)ip[2]<< 8L)|
-		((unsigned long)ip[3]);
-	them.sin_addr.s_addr=htonl(addr);
-
-	if (type == SOCK_STREAM)
-		s=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
-	else /* ( type == SOCK_DGRAM) */
-		s=socket(AF_INET,SOCK_DGRAM,IPPROTO_UDP);
-			
-	if (s == INVALID_SOCKET) { perror("socket"); return(0); }
-
-#if defined(SO_KEEPALIVE) && !defined(OPENSSL_SYS_MPE)
-	if (type == SOCK_STREAM)
-		{
-		i=0;
-		i=setsockopt(s,SOL_SOCKET,SO_KEEPALIVE,(char *)&i,sizeof(i));
-		if (i < 0) { perror("keepalive"); return(0); }
-		}
-#endif
-
-	if (connect(s,(struct sockaddr *)&them,sizeof(them)) == -1)
-		{ closesocket(s); perror("connect"); return(0); }
-	*sock=s;
-	return(1);
-	}
-
-int do_server(int port, int type, int *ret, int (*cb)(char *hostname, int s, unsigned char *context), unsigned char *context)
-	{
-	int sock;
-	char *name = NULL;
-	int accept_socket = 0;
-	int i;
-
-	if (!init_server(&accept_socket,port,type)) return(0);
-
-	if (ret != NULL)
-		{
-		*ret=accept_socket;
-		/* return(1);*/
-		}
-  	for (;;)
-  		{
-		if (type==SOCK_STREAM)
-			{
-			if (do_accept(accept_socket,&sock,&name) == 0)
-				{
-				SHUTDOWN(accept_socket);
-				return(0);
-				}
-			}
-		else
-			sock = accept_socket;
-		i=(*cb)(name,sock, context);
-		if (name != NULL) OPENSSL_free(name);
-		if (type==SOCK_STREAM)
-			SHUTDOWN2(sock);
-		if (i < 0)
-			{
-			SHUTDOWN2(accept_socket);
-			return(i);
-			}
-		}
-	}
-
-static int init_server_long(int *sock, int port, char *ip, int type)
-	{
-	int ret=0;
-	struct sockaddr_in server;
-	int s= -1;
-
-	if (!ssl_sock_init()) return(0);
-
-	memset((char *)&server,0,sizeof(server));
-	server.sin_family=AF_INET;
-	server.sin_port=htons((unsigned short)port);
-	if (ip == NULL)
-		server.sin_addr.s_addr=INADDR_ANY;
-	else
-/* Added for T3E, address-of fails on bit field (beckman@acl.lanl.gov) */
-#ifndef BIT_FIELD_LIMITS
-		memcpy(&server.sin_addr.s_addr,ip,4);
-#else
-		memcpy(&server.sin_addr,ip,4);
-#endif
-	
-		if (type == SOCK_STREAM)
-			s=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
-		else /* type == SOCK_DGRAM */
-			s=socket(AF_INET, SOCK_DGRAM,IPPROTO_UDP);
-
-	if (s == INVALID_SOCKET) goto err;
-#if defined SOL_SOCKET && defined SO_REUSEADDR
-		{
-		int j = 1;
-		setsockopt(s, SOL_SOCKET, SO_REUSEADDR,
-			   (void *) &j, sizeof j);
-		}
-#endif
-	if (bind(s,(struct sockaddr *)&server,sizeof(server)) == -1)
-		{
-#ifndef OPENSSL_SYS_WINDOWS
-		perror("bind");
-#endif
-		goto err;
-		}
-	/* Make it 128 for linux */
-	if (type==SOCK_STREAM && listen(s,128) == -1) goto err;
-	*sock=s;
-	ret=1;
-err:
-	if ((ret == 0) && (s != -1))
-		{
-		SHUTDOWN(s);
-		}
-	return(ret);
-	}
-
-static int init_server(int *sock, int port, int type)
-	{
-	return(init_server_long(sock, port, NULL, type));
-	}
-
-static int do_accept(int acc_sock, int *sock, char **host)
-	{
-	int ret;
-	struct hostent *h1,*h2;
-	static struct sockaddr_in from;
-	int len;
-/*	struct linger ling; */
-
-	if (!ssl_sock_init()) return(0);
-
-#ifndef OPENSSL_SYS_WINDOWS
-redoit:
-#endif
-
-	memset((char *)&from,0,sizeof(from));
-	len=sizeof(from);
-	/* Note: under VMS with SOCKETSHR the fourth parameter is currently
-	 * of type (int *) whereas under other systems it is (void *) if
-	 * you don't have a cast it will choke the compiler: if you do
-	 * have a cast then you can either go for (int *) or (void *).
-	 */
-	ret=accept(acc_sock,(struct sockaddr *)&from,(void *)&len);
-	if (ret == INVALID_SOCKET)
-		{
-#if defined(OPENSSL_SYS_WINDOWS) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK))
-		int i;
-		i=WSAGetLastError();
-		BIO_printf(bio_err,"accept error %d\n",i);
-#else
-		if (errno == EINTR)
-			{
-			/*check_timeout(); */
-			goto redoit;
-			}
-		fprintf(stderr,"errno=%d ",errno);
-		perror("accept");
-#endif
-		return(0);
-		}
-
-/*
-	ling.l_onoff=1;
-	ling.l_linger=0;
-	i=setsockopt(ret,SOL_SOCKET,SO_LINGER,(char *)&ling,sizeof(ling));
-	if (i < 0) { perror("linger"); return(0); }
-	i=0;
-	i=setsockopt(ret,SOL_SOCKET,SO_KEEPALIVE,(char *)&i,sizeof(i));
-	if (i < 0) { perror("keepalive"); return(0); }
-*/
-
-	if (host == NULL) goto end;
-#ifndef BIT_FIELD_LIMITS
-	/* I should use WSAAsyncGetHostByName() under windows */
-	h1=gethostbyaddr((char *)&from.sin_addr.s_addr,
-		sizeof(from.sin_addr.s_addr),AF_INET);
-#else
-	h1=gethostbyaddr((char *)&from.sin_addr,
-		sizeof(struct in_addr),AF_INET);
-#endif
-	if (h1 == NULL)
-		{
-		BIO_printf(bio_err,"bad gethostbyaddr\n");
-		*host=NULL;
-		/* return(0); */
-		}
-	else
-		{
-		if ((*host=(char *)OPENSSL_malloc(strlen(h1->h_name)+1)) == NULL)
-			{
-			perror("OPENSSL_malloc");
-			return(0);
-			}
-		BUF_strlcpy(*host,h1->h_name,strlen(h1->h_name)+1);
-
-		h2=GetHostByName(*host);
-		if (h2 == NULL)
-			{
-			BIO_printf(bio_err,"gethostbyname failure\n");
-			return(0);
-			}
-		if (h2->h_addrtype != AF_INET)
-			{
-			BIO_printf(bio_err,"gethostbyname addr is not AF_INET\n");
-			return(0);
-			}
-		}
-end:
-	*sock=ret;
-	return(1);
-	}
-
-int extract_host_port(char *str, char **host_ptr, unsigned char *ip,
-	     short *port_ptr)
-	{
-	char *h,*p;
-
-	h=str;
-	p=strchr(str,':');
-	if (p == NULL)
-		{
-		BIO_printf(bio_err,"no port defined\n");
-		return(0);
-		}
-	*(p++)='\0';
-
-	if ((ip != NULL) && !host_ip(str,ip))
-		goto err;
-	if (host_ptr != NULL) *host_ptr=h;
-
-	if (!extract_port(p,port_ptr))
-		goto err;
-	return(1);
-err:
-	return(0);
-	}
-
-static int host_ip(char *str, unsigned char ip[4])
-	{
-	unsigned int in[4]; 
-	int i;
-
-	if (sscanf(str,"%u.%u.%u.%u",&(in[0]),&(in[1]),&(in[2]),&(in[3])) == 4)
-		{
-		for (i=0; i<4; i++)
-			if (in[i] > 255)
-				{
-				BIO_printf(bio_err,"invalid IP address\n");
-				goto err;
-				}
-		ip[0]=in[0];
-		ip[1]=in[1];
-		ip[2]=in[2];
-		ip[3]=in[3];
-		}
-	else
-		{ /* do a gethostbyname */
-		struct hostent *he;
-
-		if (!ssl_sock_init()) return(0);
-
-		he=GetHostByName(str);
-		if (he == NULL)
-			{
-			BIO_printf(bio_err,"gethostbyname failure\n");
-			goto err;
-			}
-		/* cast to short because of win16 winsock definition */
-		if ((short)he->h_addrtype != AF_INET)
-			{
-			BIO_printf(bio_err,"gethostbyname addr is not AF_INET\n");
-			return(0);
-			}
-		ip[0]=he->h_addr_list[0][0];
-		ip[1]=he->h_addr_list[0][1];
-		ip[2]=he->h_addr_list[0][2];
-		ip[3]=he->h_addr_list[0][3];
-		}
-	return(1);
-err:
-	return(0);
-	}
-
-int extract_port(char *str, short *port_ptr)
-	{
-	int i;
-	struct servent *s;
-
-	i=atoi(str);
-	if (i != 0)
-		*port_ptr=(unsigned short)i;
-	else
-		{
-		s=getservbyname(str,"tcp");
-		if (s == NULL)
-			{
-			BIO_printf(bio_err,"getservbyname failure for %s\n",str);
-			return(0);
-			}
-		*port_ptr=ntohs((unsigned short)s->s_port);
-		}
-	return(1);
-	}
-
-#define GHBN_NUM	4
-static struct ghbn_cache_st
-	{
-	char name[128];
-	struct hostent ent;
-	unsigned long order;
-	} ghbn_cache[GHBN_NUM];
-
-static unsigned long ghbn_hits=0L;
-static unsigned long ghbn_miss=0L;
-
-static struct hostent *GetHostByName(char *name)
-	{
-	struct hostent *ret;
-	int i,lowi=0;
-	unsigned long low= (unsigned long)-1;
-
-	for (i=0; i<GHBN_NUM; i++)
-		{
-		if (low > ghbn_cache[i].order)
-			{
-			low=ghbn_cache[i].order;
-			lowi=i;
-			}
-		if (ghbn_cache[i].order > 0)
-			{
-			if (strncmp(name,ghbn_cache[i].name,128) == 0)
-				break;
-			}
-		}
-	if (i == GHBN_NUM) /* no hit*/
-		{
-		ghbn_miss++;
-		ret=gethostbyname(name);
-		if (ret == NULL) return(NULL);
-		/* else add to cache */
-		if(strlen(name) < sizeof ghbn_cache[0].name)
-			{
-			strcpy(ghbn_cache[lowi].name,name);
-			memcpy((char *)&(ghbn_cache[lowi].ent),ret,sizeof(struct hostent));
-			ghbn_cache[lowi].order=ghbn_miss+ghbn_hits;
-			}
-		return(ret);
-		}
-	else
-		{
-		ghbn_hits++;
-		ret= &(ghbn_cache[i].ent);
-		ghbn_cache[i].order=ghbn_miss+ghbn_hits;
-		return(ret);
-		}
-	}
-
-#endif